Powertrain

Output Shaft Speed (OSS) Sensor

6steps
~36min
2/5difficulty
01020304050107N·mlb·ft
Tightening torque found on this page
Done 0 of 6
Material
Item Specification
Motorcraft® MERCON® LV Automatic Transmission Fluid XT-10-QLVC (US); CXT-10-LV12 (Canada) MERCON® LV

Output Shaft Speed (OSS) Sensor
Item Part Number Description
1 W500214-S439 Bolt
2 7H103 Output Shaft Speed (OSS) sensor
3 W706315-S300 O-ring

Removal
  1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Section 100-02.
  2. Place a drain pan beneath the Output Shaft Speed (OSS) sensor.
  3. Remove the OSS sensor.
    • Disconnect the electrical connector.
    • Remove the bolt.
    • Inspect the OSS bore.
  1. Inspect the O-ring seal for nicks or cuts; install a new O-ring if necessary.
Installation
  1. NOTE: Apply a light coat of clean transmission fluid to the O-ring before installation.

    Install the OSS sensor.

    • Tighten to 10 N·m.
    • Connect the electrical connector.
  1. Lower vehicle.
  2. Check the transmission fluid level and add transmission fluid as necessary.
  3. Start the engine and move the transaxle range selector lever through all gear positions.

Test yourself

A quick Ford Focus quiz: every answer comes with an explanation and a link to the manual page.